* Genuine Round Black Onyx, Garnet, or Rainbow Moonstone Gemstone * 3/4" Wide Across the Center (4mm bottom) * Top Opens to Reveal a Secret Compartment (9x12mm) * Marked 925 for Sterling Silver This is a neat solid sterling silver medieval style poison ring set with genuine gemstone in the center of a cross. Poison rings open to reveal a secret hiding place! You may have heard the legend that poison rings were used to secretly poison kings and queens of old but there are many less mischievous uses for these rings. The compartments are small but you could add scented herbs, medicine, special prayers, a lock of hair, photos or any tiny items that would fit!